Suzuki Chihiro was in love with her best friend, Narumi Tsukasa, and often masturbated while thinking of her. Her brother, discovering that his younger sister had been secretly watching these acts, used his newly acquired possession ability to take control of Tsukasa's body when she came to visit, and used it to sexually manipulate his sister. He then possessed Saki, an office lady working at his father's company, forcing her to masturbate in front of his father, indulging himself in the pleasures of possession. However, upon learning that Tsukasa had been avoiding Chihiro after the last incident, the brother decided to reconcile them. He planned to possess Airisa, Chihiro's private tutor, to teach her how to please a woman, but when Chihiro strongly resisted, he brutally raped her. Regretting his actions, the brother kidnapped Tsukasa on her way home and took her to an abandoned building, summoning Chihiro there. Yet despite his careful preparations, Tsukasa insisted on returning home with Chihiro. Witnessing this, the brother finally possessed Tsukasa's body and violated her.